| GENERAL DESCRIPTION |
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The 4CW10,000A / 8661 is a water-cooled, ceramic-metal power tetrode which is electrically identical to the 4CX10,000D / 8171 (and 4CX5000A / 8170, except for plate dissipation). The water-cooled anode is equipped with an integral water jacket and is rated at 12 kilowatts dissipation. The 4CW10,000A / 8661 is useful as an oscillator, amplifier or modulator at frequencies up to 110 megacycles, and is particularly suited for use as a linear rf amplifier or class-AB audio amplifier. A pair of these tubes operating class AB will deliver more than 30 kilowatts of audio-frequency or radio-frequency plate output power. |
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| TECHNICAL SPECIFICATIONS | |
| Plate Dissipation (Max.) | 12,000 watts |
| Screen Dissipation (Max.) | 250 watts |
| Grid Dissipation (Max.) | 75 watts |
| Frequency for Max. Ratings (CW) | 110 MHz |
| Cooling | Water and Forced Air |
| Filament Voltage Current |
Thoriated Tungsten 7.5 volts 75 amperes |
| Capacitances (Gnd. Cath. Connection) Input Output Feed-through |
115 pF 20.5 pF 1.0 pF |
| Capacitances (Gnd. Grid Connection) Input Output Feed-through |
53 pF 20.5 pF 0.16 pF |
| Amplification Factor (g1-g2) | 4.5 |
| Base | Special Coaxial |
| Recommended Air-System Socket | SK-300 Family |
| Maximum Seal & Anode Core Temperature | 250°C |
| Maximum Length | 11.44 in; 29.06 cm |
| Maximum Diameter | 4.66 in; 11.84 cm |
| Weight (approximate) | 7.5 lb; 3.4 kg |
| Operating Position | Vertical, base up or down |
| Specifications may change without notice | |
| THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS | ||
| Manufacturer | Transmitter specifications | Power in kW |
| Marconi | B 6133 | 250 |
| B 6132 | 500 | |
| THIS TUBE IS AVAILABLE FROM | ||
| Manufacturer | Rebuilder | Distributor |
| Eimac | Econco | Richardson Electronics |
| Penta Laboratories | Kennetron | |
| PRICE LEVEL (US$) | |||||
| 1 | 2 | 3 | 4 | 5 | 6 |
| 0 - 10 | 10 - 100 | 100 - 1000 | 1000 - 10,000 | 10,000 - 50,000 | 50,000 - 100,000 |